Abstract
On a digital microfluidic biochip, the number of control pins used to drive electrodes is a major contributor to the fabrication cost [1]. The layout of a typical biochip is shown in Fig. 7.1a, it has three regions:
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Active region, where the biochemistry assays are executed; electrodes and on-chip reservoirs are fabricated in this region.
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Contact region, where the contact pads of the input pins are fabricated. Here each contact pad corresponds to one input pin of the biochip. In order to reduce the contact resistance, the area of each pad is usually larger than an electrode [1].
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Wire routing region, where metal wires are fabricated. The wires connect electrodes to the contact pads of the input pins.
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Luo, Y., Chakrabarty, K., Ho, TY. (2015). Pin-Limited Cyberphysical Microfluidic Biochip. In: Hardware/Software Co-Design and Optimization for Cyberphysical Integration in Digital Microfluidic Biochips. Springer, Cham. https://doi.org/10.1007/978-3-319-09006-1_7
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DOI: https://doi.org/10.1007/978-3-319-09006-1_7
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